To access PolyOne’s news library online, please go to www.avient.com/news Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.

That being said, versus the prior year, global demand conditions and inventory destocking negatively impacted nearly every industry and region during the quarter,” Mr. To access Avient’s news library online, please visit www.avient.com/news. https://www.avient.com/news 4 Pro Forma for Acquisition of Avient Protective Materials business (APM) On September 1, 2022, the company acquired DSM’s Protective Materials business, the foundation of which is the renowned technology and globally admired brand of Dyneema®, the World’s Strongest Fiber™.

Avient’s collaboration with IVCC will enable LLINs manufacturers to transform their visions into groundbreaking products that improve quality of life in a meaningful way,” said Michael Adam, global technology director at Avient. Working towards a solution that saves lives and improves public health aligns with Avient’s sustainability goals and commitment to our communities, both local and global.”    To access Avient’s news library online, please visit www.avient.com/news.

The determination of the GHG emissions is the sole responsibility of Avient. Avient is responsible for the preparation and fair presentation of the GHG emissions statement in accordance with the criteria. Miami, Florida Lakewood, Colorado July 24, 2023 This verification declaration including the opinion expressed herein, is provided to Avient and is solely for the benefit of Avient in accordance with the terms of our agreement.

NYSE: POL), a leading global provider of specialized polymer materials, services and solutions, today announced that its Board of Directors has elected in 2008 as senior vice president and chief financial officer, where he was responsible for global treasury, planning, M&A, accounting, internal audit functions, and investor relations. news library online, please visit www.avient.com/news

Shark Solutions® is a cleantech global leader in advanced sustainable PVB products and has been recognized as one of 50 Global Leaders. About Avient To access Avient’s news library online, please visit www.avient.com/news.

Provides heat stabilization • Excellent balance of properties • Natural, black or custom colors Product Code - - - PX5430 B1 PX5435 B1 PX5440 B1 PX5450 B1 Reinforcement Type - - - Glass Glass Glass Glass Reinforcement % - % - 30 35 40 50 Specific Gravity 73°F (23°C) - ISO 1183 1.13 1.18 1.23 1.35 Tensile Strength Yield MPa ISO 527 102 105 113 130 Flexural Modulus 73°F (23°C) MPa ISO 178 6500 8000 9400 11,500 Notched Izod Impact 73°F (23°C) kJ/m2 ISO 180 9.4 9.3 11.0 12.0 Heat Deflection 264 psi °C ISO 75 152 152 153 154 Product Code - - - PP5120 B270-LO MFR g/10 min ISO 1133 12 Tensile Modulus MPa ISO 527 3320 Tensile Stress Yield MPa ISO 527 32 Tensile Elongation Yield % ISO 527 4.6 Tensile Elongation Break % ISO 527 17 Flexural Modulus MPa ISO 178 3000 Charpy Impact 73°F (23°C) kJ/m2 ISO 179/1eU 38 Heat Aging 150°C h VW 44045 700 hr VOC µg/g VDA 278 23.5 Fog µg/g VDA 278 30.5 Carbon Emissions µgC/g VDA 277 18 Odor Grade VDA 270 B3 3 10 Maxxam™ Filled & Reinforced A range of melt flows to process well in sheet extrusion, thermoforming, profile extrusion and blow molding operations Product Code - - - PE4125 Reinforcement - - - Talc Reinforcement - % - 25 Specific 73°F (23°C) - ASTM D792 1.15 Tensile Yield psi ASTM D638 4050 MPa ISO 527 28 Tensile Yield % ASTM D638 10 Break % ASTM D638 40 Flexural 73°F (23°C) psi ASTM D790 270,000 MPa ISO 178 1850 Notched 73°F (23°C) ft-lb/in ASTM D256 3.5 kJ/m2 ISO 180 20.0 Heat 66 psi °F ASTM D648 190 °C ISO 75 88 264 psi °F ASTM D648 115 °C ISO 75 46 12 www.polyone.com Copyright © 2019, PolyOne Corporation. Focused on sustainable growth platforms, we support you with: • Twin-screw compounding, drum tumbler mixing, injection molding and compression molding • Full physical, analytical, weathering and burn testing capabilities designed to shorten the time to market for new products and applications • State-of-the-art innovation centers complete with customer meeting space for real time analysis and collaboration Our global experience in developing filled or fiber reinforced formulations provides unmatched value for you!

To access PolyOne’s news library online, please go to www.avient.com/news. Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.